This fix is a case where a nv50 or gf100 graphics card is used on a VMD Domain (or other memory restricted domain) that results in a null-pointer dereference. One of the original fixes was already backported: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.19.y&id=5744fd7fa1d164a8fcbb1a65def927cab84c9a68 Sushma Kalakota (3): drm/nouveau/bar/nv50: check bar1 vmm return value drm/nouveau/bar/gf100: ensure BAR is mapped drm/nouveau/mmu: qualify vmm during dtor drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.c | 2 ++ drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.c | 2 +- 3 files changed, 5 insertions(+), 1 deletion(-) -- 2.17.1
